[rjhzxc]

Hi Folks
If anyone can remember details of these controllers perhaps they can suggest a suitable course of action for:

a CRT that has started to display random squares, stripes and weird shapes and sometimes displays flashing random horizontal lines and on one occasion tried to display "FS10M9A".

There are a few red "Error" LEDs on the various PCBs and the 7 segment display on the Master PCB shows a small 'c'.

I've tried to fiddle with the connectors that are accessible for any bad connections but to no avail.


Regards
Rob
:drowning:

[thanks!]

According to the manual I have for the 10M, a "c" indicates:

"Transfer Error through optical fiber cable"

"Check Alarm LED of the units connected by optical fiber cable. Replace master PCB, MDI PCB, connection unit PCB, I/O unit, or optical fiber cable. Replace PMC RAM in case of PC debug."

Hopefully someone else will chime in with some first hand experience.

[memoryman]

optical fiber cable sometimes develop cracks. From your description, it sound like a 'sync' problem somewhere, or the graphics controller section can be bad.